Revert closing a session on Ctrl+D.

This reverts commit 5d1e980.

src/Enums.ts

@@ -120,6 +120,7 @@ export enum KeyboardAction {
     // pane commands
     panePrevious,
     paneNext,
+    paneClose,
     // edit/clipboard commands
     clipboardCopy,
     clipboardCut,

src/views/1_ApplicationComponent.tsx

@@ -150,6 +150,17 @@ export class ApplicationComponent extends React.Component<{}, ApplicationState>
             return;
         }
 
+        // Close focused pane
+        if (isKeybindingForEvent(event, KeyboardAction.paneClose) && jobFormComponent) {
+            this.closeFocusedPane();
+
+            this.forceUpdate();
+
+            event.stopPropagation();
+            event.preventDefault();
+            return;
+        }
+
         // Change focussed tab
         if (isKeybindingForEvent(event, KeyboardAction.tabFocus)) {
             const position = parseInt(event.key, 10);

src/views/keyevents/Keybindings.ts

@@ -72,6 +72,11 @@ export const KeybindingsForActions: KeybindingType[] = [
             return (e.ctrlKey && e.keyCode === KeyCode.N) || (e.keyCode === KeyCode.Down);
         },
     },
+    // pane command
+    {
+        action: KeyboardAction.paneClose,
+        keybinding: (e: KeyboardEvent) => isMeta(e) && e.keyCode === KeyCode.D,
+    },
     // tab commands
     {
         action: KeyboardAction.tabFocus,